{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "arguments": ["vulnerability", "vulnerable system", "discoverer", "supported platform", "time", "vulnerable system owner", "vulnerable system version", "capabilities"]}], "input": "More specifically , it only affects version 4.0.0 and up Samba installations that are also running their Remote Procedure Call ( RPC ) Spool Subsystem Service ( spoolss ) as an external daemon ( RPC spoolss is configured to internal by default ) ."}
{"discover vulnerability": [{"vulnerability": "it", "vulnerable system": "Samba installations", "discoverer": "NAN", "supported platform": "NAN", "time": "NAN", "vulnerable system owner": "NAN", "vulnerable system version": "version 4.0.0 and up", "capabilities": "NAN"}]}